scgradient: Scale: colour gradient Scale a continuous variable along a...

In hadley/ggplot1: Before there was ggplot2

Scale: colour gradient Scale a continuous variable along a colour gradient.

Description

This scale creates a continuous colour gradient from the low colour to the mid colour to high colour, as defined in the arguments.

Usage

scgradient(
  plot,
  name = "",
  low = "red",
  mid = "white",
  high = "black",
  midpoint = 0,
  range = c(NA, NA)
)

scfillgradient(
  plot,
  name = "",
  low = "red",
  mid = "white",
  high = "black",
  midpoint = 0,
  range = c(NA, NA)
)

Arguments

plot	plot
name	namen of the scale (used in the legend)
low	colour at low end of scale
mid	colour at middle of scale
high	colour at top of scale
midpoint	definition of midpoint
range	range to scale data to

Examples

p <- scgradient(ggplot(reshape::tips, aes = list(x = sex, y = day)))
ggjitter(p, list(colour = total_bill))
ggjitter(p, list(colour = tip))

p <- ggjitter(p, list(colour = tip))
scgradient(p, low="yellow")
scgradient(p, high="green", midpoint=5)

hadley/ggplot1 documentation built on Dec. 1, 2024, 11:23 a.m.